Welt butting machine



June 1936- B. B. BLANCHARD WELT BUTTING MACHINE 3 Sheets-Sheefi 2 I Filed May 1, 1935 44 50 VE/V TUE.

J1me 1936 B. B BLANCHARD 2,045,577

WELT BUTTING MACHINE Filed May 1, 1955 3 Sheets-Sheet s Fig.5.

' Fig.6.

//\/ VE/V TUE.

Patented June 30, 1936 PATENT orrlee 2,045,577 "YIPWELT BUT'QING MACHINE Benjamin B. Blanchard, Swampscott, Mass, w Signor to United Shoe Machinery Corporation, Paterson, N. J.,va corporation of New Jersey 7 Application-May 1 1933, Serial No. 668,829

7 ,15 Claims. (01. 129-6 7) This inventionrelates to machines for operat-' ing upon boots and shoes and is illustrated as embodied in a machine of the'typesho-wn, for example, inUnited States Letters Patent No.

1,614,836, granted January 18, 1927, on an application of George Goddu, and-No. 1,709,347 granted April 16, 1929, on an application of George Goddu and Fred L. Mackenzie. Such machines are designed for butting the welt of a welted, unsoled my shoe preparatory to the sole laying operation and tacking the margin of the upper to the insole in the region of the heel breast line; Such machines include devices for supporting a shoe, means for locating and suppo-rtingjthe welt'ends dur ing the butting operation,"cutte;rs for butting -the welt comprising a stationary anvil 1 and a movable knife arranged: to a shear off the weltf at the end of the inseam, andtackers for securing the upper to theinsole. V V The location of the tacks which secure the'marin of the upp r to the insolemustt be effected with considerable precision if these tacks are most effectively to serve: their purpose; namely, to secure in lasted position that portion of the upper in the region of the 'heel breastjwhich is not held in position by the inseam or the heel seat lasting. tacks." The range within which these tacks are locatedlongitudinallyof the shoe bottom is less than oneshalf inch andmost of this space is takenup by the anvil during the welt butting operation. It is, therefore; desirable to move the anvil from its operative position before the tacking operation. a

It is an object of this invention to provide a machine of the type 'Setfforth in the patents above referred to which, without sacrificing any ofthe advantages of prior constructions'of this type, provides an organization which permits the location of the tacks above referred toifat any 40v point between the end of theinseam and the end of the line of heelseattacks, Accordingly; a feature of .the invention consists in the. provision, in combination with the tack mechanism of a welt butting. machine, of co-' operating welt butting cutters, for example, the knife and the anvil of the illustrated machine, both of which, during the welt butting operation, are positioned in alinement-with the fastening means and both of j which are movable out of alinement with said fastening means after the welt has been butted and before the fastener is inserted. In the illustrated machine, the movement of the knife out of alinement with the fastening means is a continuation of its operating movement after the welt has been butted,

and the movement of the anvil out of alinement with the fastening means is widthwise of the shoe, such movement of the anvil being effected by means operable by the knife actuating mechanism.

'A further feature of the invention comprises an organization including a crease finder movable with the tacker transversely toward and from the shoe and adjustable relatively to the tacker in the direction of movement of the crease finder and agage for locating the crease finder in anyone of a' series of predetermined positions relatively to the tacker. As illustrated, the gage consists of an axially mounted polygonal block the edge faces of which are arranged at varying distances-from the axis of the block.

,These and other features of the invention, including certain details of construction and arrangement of parts hereinafter set forth, will now be'specifically described with reference to the accompanying drawings and pointed out in the appended claims.

' In the drawings, o v

, Fig; l 'is a front elevation of a welt butti machine embodying the features of the present invention; I

Fig; 2 is a broken plan view taken substantially in the plane of the bottom of a shoe held in position to be operated upon;

Fig; 3 is a plan view similar to Fig. 2, showing the operating instrumentalities as they are ar- Fig. 8 is a perspective view of the combined L welt support and anvil carrier.

The general organization of the illustrated machine is substantially the same as in the ma.- chine disclosed in the patent to Goddu and Mackenzie, above referred to, to which reference maybe had for a description of details of construction not disclosed herein.

.Referring to'Fig. 1 the illustrated machine is provided with a pair of shoe supporting members l0, and a back stop l2 arrangedto take the force of the cutting stroke of the welt butting knives 14. The heel seat of a shoe to be operated upon is located at a predetermined elevation by a holddown member IS. The welt at each side of the shoe is supported for the butting operation by a crease finder l8, (Fig. 2) an anvil 20, and a welt support 22 which, together with the knives I4 and a pair of tackers 24 (Fig.1) are mounted in a pair of swinging frames 26 1.11- crumed at 28 to vertical shafts journaled in the machine frame. the swinging frames 26 are in their open; position, as shown in Fig. 1. When the machine is started the swinging frames 26 are'automatically swung inwardly thereby causing the crease finders l8 to engage in the welt crease at opposite sides of the shank of the shoe and thus to urge the margin of the upper and the parts stitched thereto inwardly over the last bottom. The unlasted portions of the upperbetween theends of .the inseam. and the ends of the lineof heel Seat-tacks are thus urged inwardly over thelast bottom and held in position'for the reception of .tacks 30 (Fig. 3) which are driven by the tackers 24 after the welt has been butted and afterthe :anvils. 20 have-been withdrawn transversely .of theshoe in order to bring them out of alinement with the tackers.

The following descriptionis confined to one ofthe swinging frames 26 and the parts assem bled therein but it will be understood that the description is equally applicable to the opposite swinging frame assembly.

Referring now more particularlyto the construction and arrangement of the anvil 20 said anvil-is arranged to over-lie the shoebottom and itsupper'surface is in the horizontalplane in which the welt butting-knife 1,4 moves .as it vadvances to butt the welt. The forwardupper edge of the anvil forms a stationary .cuttingelement which co-operates with the knife-toimpartqa shearing cut to the welt. The forward edge face ofthe anvil .25! engages the rear. edge face ofthe ereasefinder 18 (Fig. 2) .andtherear edge face of the anvil engages the forward edge face .of. the weltsupport22. ;The ,upper surfaces .of the crease finder, the anvil,land the welt support form .a substantially continuous, unbroken surfaceover which the end of the welt travelsas. thegshoe is inserted into the machine. The forward .edge face .of the anvil at itsinner endserves as an abutmentto arrest the movementof the .shoe and to gage its operative position -by.engagementwiththe endof the inseam. The anv;il is provided with a shank .32 (Fig. -which.is ;oif-- set downwardly therefrom and slidablvmounted upona carrier .34which carrier is formed integrally with the. welt support 22 .and downwar ly ofiset therefrom (Fig. .8). .Therear side of-the shank 32 of the anvil is provided with a tongue 36 (Fig. 6) which is .arrangedrto .slide in a transversegroove .38 formed in the :car1 ier..34 [The carrier 34 is extended forwardly at 39 taprovide a support forashank portion40arranged toextend outwardly'from the creasefinder 1.8, said shank being arranged to embrace the end of the forward extension. of the carrier -34 and toslide thereon toward and from the .shoe (Fig. .6). Preferably, the front face of. the shank -3.2,.of.the anvil is offset forwardly, from thefront edge face of the anvil (Fig. '3) and therear faceofthe shank 48 of the crease finder l8 isoflfsetforwardly Ifromfithe rear edge vface of the crease finder to the same extent ,as'the .o'ffset provided in the's'hank'32,

When the machine is at rest The anvil 20 is withdrawn from its operative position, prior to the actuation of the tacker 24, by a power-operated slide 68 (Fig. 7) which actuates a knife carrier 10. As illustrated, the connection between the power operated slide 68 and the anvil comprises a cam lever 50 (Fig. 2) having pin and slot connections with, the slide 68 andthe :shank ;32of the anvil, respectively. Accordingly, there is provided at the outer end of the shank 32 of the anvil a pin 42 (Fig. 5) arranged to extend into a recess 44 formed in the carrierlM GF-ig. 8). A roll 46 is carried by the pin 42 for engagement within a slot 48 in the cam'lever 50. The cam lever is fulcrumed on a rhea-deal, stud 52 (Fig.4) projecting upwardly from an upstanding boss-54 formed in an arm 56. The

.armifi is,-sec.ured by a split clamp 58 to a headed stud 60 extending downwardly from a forwardly extending arm 62 of the carrier 34. The cam lever 5.0;18 supportedwupon a surface .64 which extends from the forward end of the arm.62 rearwardlytothe rear edgeface of thecarrier 34 Fi 18.) '?:'he surface 64., extends inwardly to the baseofan =arcuate groove .66 and. outwardly to the endof :the carrier .34. .The upper wall of the groove .56 .provides .an abutment which holds the camlever .Sflfrom vertical movement. In order pr v-i e clearance for the pin "and roll 46 as they-move inwardly to return the anvil ,20 to its-initial; position, the ;upper wall ,of the. groove 6.6;;iSnQllt away at 51,, .as shown in'Figs. v2 and 8. The. camlever is actuated ,by the power operated slide 68 (Fig. 7) which is arranged to move .rearwardly.-of..themachine in .a horizontal plane in orderto zdrfawthelwelt buttingknife l4 through the-welt. The power operated .slide has an inclined sliding connection withthe knife carrier 10. Projecting downwardlyfromthe knife carrier.,is -.a,-D. n 1,2. the upper endof which provides a ,f.ulcrum for..a .cam actuated lever .14 which actuateshachi p removerlli (Fig. .1). .M n t on the downmardextension,of the'pi-n .12 is .a {cam roll 18 whichitravels in a- .c am',-slot; 80in the lever 50,.theean1-fro11 being of sufficient len h to rethe Ica'mslot duringthe vertical .movementofthe linifej.carrier',flll. The arm 56 (Fig. t0 wh. h is clamped thestud .52 ,on which the.. cam lever-.250 .is -,f.u1 .l.1med, i spa ed downwar lvir in the. extension .62jtowhich sai am isseouredsuflicient ly to permit; the pin." to clear the a m..as;th.e pin .znoves forwardly and downwardly with theknifecarrierjlll (Fig. 7).

'I'helocation of thetack. ,130 transversely of the shoeibottom is determ n d .by th easefind 1. Whichgen a es within the welt. crease 'ofthe shoe and ther hyilo ate th tacker 24 transversely..of..the; shoebottom. :I .o fder'to vary the cal i n jof thegtackjill transversely ofthe shoe bottom the creasejfinder'is adjusted transversely of g the shoe by sliding the shank *40 of the ,crease finder upon'thefforward'extension'j39 of-the carrier13j4; In' .order'to secure the crease finder in adjusted position a clamping screw ilz is arranged to. extend through a slot'94 (Fig.rilin the shank I'O all'd =has threaded engagementwithin a tapped bore'in'the carrier. In *ordertto gagethe jadjustment of the crease finder'1'8 a polygonal-block 961's axially mounted on the -screw 92. As-illustrated, *the pO1yg onal block-964s, substantially a regular octagon and "its ,axis isjso located that-the edge faces offthe'jblock are arranged at progressivelyvarying distances --therefrom. As shown in -=Fig. 4, numerals "are inscribed --upon-the front face of the blockin order'to indicatethe-"relative disell) ginning with the face indicated by the zero and ending with the face indicated by the numeral 1. The progression advances in numerical order fro-m O to 7 as indicated by the numerals inscribed upon the front face of the block. It will thus beseen that the progression is alternately clockwise and counterclockwise. The shank of the crease finder i8 is provided with a for wardly extending shoulder 98 (Fig. 2) which is arranged to abut against the block 96 in order to locate the crease finder in adjusted position. The location of the tack 311 lengthwise of the shoeis variedby adjusting the longitudinal position of the shoe relatively to the machine. This adjustment is effected by varying. the position 3 provided a horizontal stud Ml] (Fig. 6) extending rearwardly from therear face of the carrier 34 and arranged to be received within a socket Hi2 provided in the swinging frame 26. Preferably, the adjustment of the carrier 34 is effected by a screw EM threaded into a tapped socket in the swinging frame '28 and provided with a round head me which has-formed therein an annular groove me within which is located a bifurcated lug H5 which extends downwardly from the under surface of the carrier 34. The carrier may be secured in adjusted position by a draw bolt H2 arranged to engage the stud W0.

In order that the cutting edge of the knife it may register accurately with the cutting edge of the anvil 20 a spacing block is provided between the under surface of the carrier 34 and a forward extension M of the swinging frame 26 (Fig. 6) whereby the carrier is prevented from rocking in its supporting socket m2 in the swinging frame 26. In the illustrated machine the spacing block is in the form of a wedge 82 (Fig. 5) mounted in an inclined groove 83 in the under surface of the carrier 34 (Fig. 8), The wedge 82 is adjustable longitudinally thereof by means of a screw 84 threaded into a lug 86 extending downwardly from the outer end of the wedge 82 and provided with a round head 88 arranged to engage within a groove 90 formed in the under surface of the carrier M. It is apparent that the screw 84 may be actuated to advance the wedge 82 in order to take up the space between the under surface of the carrier 34 and the supporting surface of the swinging frame 26.

The operation of the machine, in so far as it relates to the present invention, is as follows. The necessary adjustments having been made to effect the desired location of the tack 30, the shoe to be operated upon is inserted into the machine and moved rearwardly thereof until it is arrested by the engagement of the anvil 20 with the end of the inseam. The clutch is then tripped to start the machine whereupon the knife I4 is moved downwardly and then rearwardly of the shoe carrying with it the cam roll 18 which actuates the cam lever 50. While the welt is being cut the cam roll l8 travels through a dwell in the cam slot 80. The anvil is braced for the cutting operation by a'shoulder H3 (Fig. 8) formed inthe welt support 22 and arranged to engage a rearwardly extending lip formed in the anvil. The knife assembly continuesto travel rearwardly of the shoe after the welt has been butted, bringing the roll 78 into engagement with the inward-- ly curved portion H4 of the cam slot 80' (Fig. 2) and swinging the cam lever outwardly, thereby withdrawing the anvil 20- from a position of alinement with the tacker 24. The tacker 24 then moves from its initial position, as shown in Fig. 1, downwardly in a path inclining inwardly toward the shoe bottom and comesto rest with its nozzle H6 in pressing engagement with that portion ofthe margin of the upper from which the anvil was withdrawn. The tack 30 is then driven and thereafter the operating instrumentalities are returned to their respective initial positions for a repetition of the cycle above described.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a welt butting. machine, means for fastening the margin of the upper to the insole in the'region of the heel breast line, and co-operating welt butting cutters one of which is initially positioned in the path of movement of the fas i teningmeans and movable transversely of the shoe outof said position.

2. In a welt butting machine, means for fastening the margin of, the upper to the insole in the region of the heel breast line, and cooperating welt butting cutters both of which, during the welt butting operation, are positioned in alinement with the fastening means and both of which are movable out of alinement with said fastening means after the welt has been butted and before the fastener is inserted.

3. In a welt butting machine, a tacker for fastening the margin of the upper to the insole in the region of the heel breast line, and welt butting cutters including an anvil which is initially positioned in alinement with the tacker and movable transversely of the shoe in order to bring it out of alinement with the tacker.

4. In a welt butting machine, a tacker for fastening the margin of the upper to the insole in the region of the heel breast line, welt butting cutters including an anvil which is positioned initially in alinement withthe tacker, and means operable after the welt has been butted and before the tack is driven to move the anvil out of alinement with the tacker.

5. In a welt butting machine, a tacker for fastening the margin of the upper to the insole in the region of the heel breast line, welt butting cutters comprising a knife and an anvil arranged in shearing relation to each other said anvil being positioned initially in alinement with the tackenknife actuating mechanism, and means operated by the knife actuating mechanism to withdraw the anvil transversely of the shoe after the welt has been butted and before the tack is driven.

6. In a welt butting machine, welt butting cutters and a support therefor, said cutters including an anvil constructed and arranged for movement relatively to its support transversely of the shoe.

7. In a welt butting machine, welt butting cutters and a support therefor, said cutters includn -anaen i .eons u tede de rens d fa m e men relat ve y o its suppe t a ve sely of thesho and m an eperat de t th w l ha been-butt d .to w hd the a -transvers ly of -the hoe- B- in a weltb t in machine, a c ease finde and welt butting cutters including an ,anvil arranged for movement transversely of the shoe el tiv y -t e crease finde "9 In a wel bu t n m ch ne a supp rt vf one end of the welt, a crease finder, and welt bu in cu er ncludin a an i ar a e b tween the welt support and the crease finderfor slidin movement trans e se o t sho 10. In a Welt butt ng machine. a support to one end of the welt, and welt butting cutters ineludin an anvil .which is arranged to l d transversely of the shoe relatively to the support, said welt suppo being constructed and a an d t brace the anvil ,hei htwise of the shoe for the cutting operation.

11. In a welt butting machine, a support for one end of the weltand welt butting cutters including an anvil arranged for movement transversely of the shoe relatively to the support, the upper surfaces of the support and the anvilbeing disposed in a common plane, and means ior supporting the anvil upon the welt supportcomprising a lip formed in the anvil and arranged to overlie a shoulder formed in the support,

12. In a welt butting machine, a support for one end of the welt, a crease finder, welt buts n cutters comprisin a knife and an which is arranged to slide transversely of the shoe between the welt support and the crease finder, knife actuating mechanism, Ba m ans actuated by the knife actuating mechanism ;to withdraw the anvil transversely of the shoe after the welt has been butted.

13. In arwelt butting machine, a tacker for aorstw iastening-the marg n of-th uppe t he nsole in the region of the heel vbreast line, a crease find movable wi h th t he transv rs ly to ward and from-the shoe and adjustable relative- 1y :to thetacker in the direction of movement of h c eas fi r, and a ease fo locating th c ea fin er in any (one of .a serie o p ed termined positions relatively to the .tacker.

1-51. In a welt butting machine ,a 'taeker for fastening the margintof the upper to the insole in the region of the heel breast line, a crease finder movable with the tacker transversely toward andfromthe shoe and adjustable relativelyto the tacker in the direction of movement of the crease finder, and means for locating the crease finder in any one of a series f r edetermined po ti t vely t th t elser comprisns n xia y mo nte ,pcly on leag l c th ed .i'a-QBSJQf wh ch a e subs ant ally equal-in length and arranged at varying distances from thea i zthe ck,

1 5- n .a :welt butt ng machi a .tacker .i fastenin the mar in oi the pper :to the i sole in the region of the hee breast line, a crea e finder movablewith the tacker transversely t ward and from the shoe and adjustable relative- 1y tothe tacker in the direction-of movement of the crease finder, and 'means for locating the crease finderin any one of a series of predetermined positions relativel-yto the tacker comprising an axially mounted polygonalgage blochthe edg faces f which e sub tantially equal in length and arranged at varying distances from the axis of the block, the progression of said edge iaces about the axis of the block ,from the edge face nearest said axis to the e e face farthest herefrom b in al e na e y c ockwise and counterclockwise. V

BENJAMIN B. BLANCHARD. 

